So you might be arguing with the wrong person if you want to pull culinary technicalities. When I open my copy of Escoffier Le Guide Culinaire to page 498 I find Potatoes listed in the vegetables section
But wait, let me check my copy of Jaques Pepins Complete Techniques ah, okay, on page 323 he describes potatoes as "a versatile vegetable".
Maybe The Joy of Cooking? Ah, here, on page 245, under vegetables, and a root vegetable puree recipe featuring potatoes. Fascinating...
I'm afraid I don't have a copy of the CIA textbook currently though I'm fixing that soon, and my Japanese cooking technique textbooks don't specifically categorize potatoes. Want me to get back to you when I can borrow a copy of Modernist Cuisine from my chef friend?
Even the meme in the OP is about nutrition and is being tongue in cheek by stretching the definition of vegetable to potatoes. That's literally the joke...
My comment on the OP was addressing nutrition, obviously.
See this is why you're arguing with everyone and coming across as (at best) a troll --- you've defined your position to be correct, which of course means in your world you cannot possibly be wrong.
I was only referencing that as evidence that my comments have always been in the context of nutrition, in response to being wrongly accused of moving the goalpost when the other commenter's argument fell apart.
If you eat a baked potato, have you eaten a daily serving of vegetables? Yes or no? I'm literally just correct
I mean you could eat a pizza and eat your daily serving of vegetables, but despite the memes from 10 years ago I don't think anyone would seriously consider a pizza to be a vegetable.
You could also just take vitamins and fiber supplements and do the same thing. If you drink a smoothie of multivitamins and metamucil, have you eaten your daily serving of vegetables?